Driver-free, plug and play Extendable 4-way PCle Gen 2x1 Quick access to CM4 official expansion board effect High-performance main control chip: equipped with ASMedia chip, a subsidiary of , which can support PCle 2.0 full-speed transmission and stable operation, and the performance is greatly improved compared to general chips Support additional power sockets: Support PCle interface power supply while providing additional power sockets, support 5V/12V power supply, to stable and sufficient power supply Colour:black Material:PC The actual product may have slight color difference or difference, which not affect the use Package Contents: 1 * expansion card Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.